Grizzly G0493 - Manual (Page 69)

Model g0493 (Mfg. since 7/10)
-67-
main belt replacement/tension
1. disConneCt saW FroM poWer!
2. Move the blade tilt to 0˚ (blade 90˚ to table),
and raise the main blade and scoring blade
up as far as they will go.
3. open the motor cabinet door.
4. loosen the lock handle (figure 132), rotate
the pivot handle down 180°, then tighten the
lock handle.
5. remove the old v-belts and replace them
with new belts. Always replace all of the belts
as a matched set.
6. loosen the lock handle, rotate the pivot
handle up 180°, the tighten the lock handle.
7. Check the belt tension by pushing on belt in
the center, as shown in figure 133, and not-
ing the amount of deflection.
6. Close and secure the motor cabinet door.
Flat
Belt
scoring
Blade
arbor
scoring
Motor
figure 134. replacing the scoring motor belt.
belt service
figure 132. Main blade belt tension controls.
tension Bolt
lock handle
pivot handle
Pulley
Deflection
Pulley
figure 133. Checking belt deflection.
the correct range of belt deflection for this
machine is
1 ⁄
4
"– 1 ⁄
2
".
—if the belt deflection is correct, continue to
step 8.
—if the belt deflection is incorrect, use the
tension bolt to adjust the belt to the proper
range of tension. turning the bolt clock-
wise loosens the tension; turning the bolt
counterclockwise increases the tension.
after adjusting, tighten the jam nut on the
tension bolt against the motor plate to
secure it in position. repeat
step 7.
8. Close the motor cabinet door.
scoring belt replacement/tension
1. disConneCt saW FroM poWer!
2. Move the blade tilt to 0˚ (blade 90˚ to table),
and raise the main blade and scoring blade
set up as far as they will go.
3. open the motor cabinet door.
4. push the scoring blade motor up and remove
the flat belt.
5. place the flat belt on the scoring blade arbor
as shown in figure 134, lift the scoring
motor, and slide the flat belt over the scoring
motor pulley.